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Finding the Fourth Proportional to 632.62, 871.46 and 539.06

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Solution

The fourth proportional to 632.62, 871.46 and 539.06 is: 742.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.62 : 871.46 = 539.06 : x
  2. Step 2: Convert to fraction form
    632.62/871.46 = 539.06/x
  3. Step 3: Cross multiply
    632.62x = 871.46 × 539.06
  4. Step 4: Simplify right side
    632.62x = 469,769.23
  5. Step 5: Solve for x
    x = 469,769.23/632.62
  6. Step 6: Final answer
    x = 742.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.